Attachment for snowplows



Aug-4, 1925. 1,548,694

- J. F. WEBB. JR

ATTACHMENT FOR SNOWPLOW'S Filed May 24; 1924 2 Sheets-Sheet. .l.

I L .'.1. a T1 lNVENTO R Jean R ATTORNEY Aug. 4, 1925. 1,548,694

J. F. WEBB, JR

ATTACHMENT FOR SN OWPLOWS Filed May 24, 1924 2 Sheets-Sheet '2,

ATTORNEY Patented Aug, 4, 1925.

EJNETEE STATES JEAN FRANCIS WEBB, JR., OF NEW YORK, N, Y., ASSIGNOR TO THE INTERNATIONAL SIGNAL 00., A CORPORATION OF ARIZGNA.

ATTACHMENT FOR SNOWPLOVTS.

Application filed May 24, 1924.

To all whom it may concern:

Be it known that I, JEAN F. nna, J11, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and Improved Attachment for Snowplows, of which the following is a specification.

My present invention has for an object to provide a snow plow which can be used on railroads that employ automatic train stops or signals having fixed ramps located alongside the rails or between the rails of the track and projecting up into the path of the snow plow bit; the invention pan l5 ticularly has for its object to provide an attachment for a well known type of snow plow enabling it to be used.

Another object is to provide a path clearing device that can be associated with a standard plow having a bit and a moldboard at the front and a flanger located to the rear thereof whereby the same is enabled to be used for clearing the right of way for those roads which use track ramps for signalling or train stop purposes.

In carrying out my invention, I remove from the bit of the plow a sufficient area to permit passage therethrough of the track ramps (this leaves a rib of snow along the right of way between the ramps) and mount behind the bit, at some convenient location, a path clearing device to remove the rib of snow left by the bit and clear the ramp as the plow passes over the same.

In the drawing:

Figure 1 is a side elevation of a well known type of snow plow with my invention applied.

Figure 2 is a diagrammatic plan view showing the relative location (in alignment) of the path clearer and the slot of the bit through which the ramp passes.

Figure 3 is an enlarged side elevation of my attachment-unit in its preferred embodiment.

Figure 4: is a top plan view of the parts shown in Figure 2.

Figure 5 is an elevation of a modified form of the attachment.

Figure 6 is a horizontal section on the line 66 of Figure 5.

In the drawing, in which like numerals of reference indicate like parts in all of the figures, 1 indicates the track rails and 2 designates one of the ramps located, in this Serial No. 715,607.

instance, along the side of the right of way and used in automatic signalling or train stop systems or both. These ramps usually are raised above the track rail level and would be struck by the ordinary type of snow plows now in common use, so in order to enable such plows to be employed along lines having ramps of this character I slot the bit, or remove, at 5, from the bit 4 of the plow 3, a portion of su'liicient area to enable the bit to pass the ramp (the ramp to pass through the slot 5) and in order to remove the ridge or rib of snow left by the slot 5, I provide a path clearer and mount the same on a suitable support to the rear of the slot in the bit. This path clearer may be, per se, of any construction that will effect the results desired, but I preferably employ such a path clearer of the general type disclosed in my Patent #1,190,611, July 11, 1916, modified and adapted to the present purposes.

In applying my invention to the plows now in common use, I prefer to mount the path clearer 9 011 one of the back-support ribs of the flanger, either by casting the cylinder 10 of the path clearer and the rib 9 as one, (see Figures 3 and 4:) or by bolting the cylinder to the rib (see Figures 5 and 6).

The path clearer, which is of substantially the construction shown in my aforesaid patent, comprises the cylinder 10 in which the plunger 11 has a piston 13 against which and against a guide plate 14 secured to the top of the cylinder 10, the spring 12 presses. The plunger has a stop cap 15 secured to its top to limit the downward movement and the top of the plunger, etc., are provided with a cap 16 removably secured to the rib-support.

Fastened to the button of the plunger is the path clearer shoe 17 at the lower end of the shank 18 of which is the shoe proper 19 which cuts away the snow and ice ridge left by the plow bit and removes any ice from the top of the ramp that may be present.

Instead of casting the cylinder integrally with the rib 9 it may be separately made and held thereto, as indicated at 20 in Figures 5 and 6.

In practice, the lower face of the shoe 19 will usually be held slightly lower than the top of the ramps, will ride up the inclines of the ramps and will thus clear them of snow and ice as between adj acent ramps.

l/Vhile in those plows having flanges I prefer to mount the path clearer on one of the back-support'ribs, it is obvious that the path clearer may be mounted at any other convenient location so long as it lines up with the slot 5-in the bit.

From the foregoing(description, taken in connection with the accompanying drawing, it is thought the novel details of construction and advantages of my invention will be readily apparent to these skilled in the art to which it appertains.

What I claim is I r 1. In railroad snow plows having flanges and flanger back-supports, a path clearing device mounted on a flanger support at one side of the rails.

2. In snow plows having a bit at the front and a flanger located to the rear of the bit, said flanger having back-support ribs, a path clearing device mounted on one of said ribs to the rear of the bit, said bit having provisions to pass ramps along the right of way and said path "clearer being located to remove thematerialbetween succeeding ramps.

3. In a snow plow wherein is provided a flanger having a back-supporting rib; a path clearer device carried by said rib.

4. In pathclearers'for snowplows, a supporting rib-plate, a cylinder formed on said plate, a plunger reciprocablyinounted- .said plunger and. shoe down.

5. In apathclearers for snow plows, a supporting rib-plate, a cylmder formed on said plate a ,plunger reciprocably mounted in said cylinder and carrying a path clearer shoe projected below the cylinder, and means or yieldably holding said plunger down.

6. Incombination with a-snow plowuhaving a mold board and a1bit,saidbitextendinglaterally beyond the'track rails to pass over ramps located adjacent to the track rails, said bit beingslotted where itpasscs over the ramps, said snow: plow including a flanger in the rear of the mold board, which iianger extends 'across the track rails only, fianger back supports on which: said hanger is mounted, and apath clearing "device carried on the side of the outermost 'flanger back support-and located in-the path of the ramps and in alignment with the slot in the bit whereby to remove the snow between adjacent ramps left bythe slot of the bit, said path clearer "including 13. yieldable plunger carrying. a cutting" shoe to ESCIZLPQ the ramps as the-same pass thereover, said path clearingdevice alsoincluding a housing having a. removable cap "detachably mountedIon the flangerbacksupport substantially as shown and described.

.JE-AN FRA-NGIS WEBB, JR. 

